The sum of all of the exterior angles of any regular polygon is 360 (I'm assuming by decagon you mean a regular dodecagon).
Because the total has to be 360, and a decagon has 10 sides, you divide 360 by 10 to get each exterior angle.
360 ÷ 10 = 36, so each exterior angle of a decagon is 36 degrees.
Answer:
No Soultion
Step-by-step explanation:
Distance=speed times time
distance=30mi
speed=15mph
t=t
so
30=15 times t
divide both sides by 15
2=t
2 hours
Hope this is what you are looking for
Answer:

Step-by-step explanation:
Given


Required
Determine 
In functions;

So, we have:


Substitute values for R(x) and C(x)

Open bracket

Collect Like Terms

